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<head>
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  <meta name="viewport" content="width=device-width,initial-scale=1.0">
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  <title>微啪后台管理系统</title>
  <style>
    html,
    body {
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      /* height: 100%; */
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<body>
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    //浏览器前进后退事件，将浏览器地址换为带参数的地址
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